Personalized 3rd Birthday Mermaid 3 Year Old Girl Men's V-Neck T-Shirt. Cute mermaid themed 3rd birthday outfit for a toddler girl with number 3 design. 4.7 oz., 100% pre-shrunk cotton Narrow, set-in 1x1 mitered V-neck collar Shoulder-to-shoulder taping Double-needle stitched sleeves and bottom hem